The Ordinary Retinol 0.5% in squalane face serum 30mlRetinol 0. 5% in Squalane offers a water free solution containing 0. 5% retinol an ingredient that improves the appearance of fine lines that can arise from a loss of collagen and elastin, while evening the appearance of skin texture and tone. What's more, this intermediate formulation is supported with squalane, a moisturizing agent naturally found in your skin that nourishes to help it better withstand the drying effects of retinol.